9 . 9 . 9 . 9 = 9⁴

tk nhé

9 . 9 . 9 . 9 = \(9^4\)

~ ai tk mk mk tk lại cho nha ~

9.9.9.9=\(9^4\)

7 x 7 x 7 x 7 x 7 = 7⁵

5² x5 = 5³

~Chcs bạn học giỏi~

7.7.7.7.7 =7⁵

5².5=5³

7.7.7.7.7 = 7 \(^5\)

5\(^2\).5 = 5\(^3\)

ai tk mk mk tk lại nha

2^5.2^4:2^2.1/16=(2^7)/16

\(\frac{32\cdot2^4}{2^2\cdot\frac{1}{16}}\)

\(=\frac{2^5\cdot2^4}{\frac{4}{16}}\)

\(=\frac{2^9}{\frac{1}{4}}\)

\(=2^9\cdot4\)

\(=2^9\cdot2^2\)

\(=2^{11}\)

=32 X 16 : ( 4 X 1/16)=2048

    32 . 2⁴ : ( 2² . 1/16 ) 

=  2⁵ . 2⁴ : 1/2²

=  2⁹ . 2²

= 2¹¹

\(\frac{2^7}{16}\)

\(2^{11}\)

\(a,3^2\cdot\frac{1}{243}=3^2\cdot\frac{1}{3^5}=\frac{1}{3^3}=\frac{1^3}{3^3}=\left(\frac{1}{3}\right)^3\)

\(b,81^2\cdot\frac{1}{3^3}=\left(3^4\right)^2\cdot\frac{1}{3^3}=3^8\cdot\frac{1}{3^3}=3^5\)

a) \(3^2.\frac{1}{243}=\frac{1.3^3}{243}=\frac{3^2}{243}=\frac{3^2}{3^5}=\frac{1}{3^3}=\frac{1}{27}\)

b) \(81^2.\frac{1}{3^3}=\frac{1.81^2}{3^3}=\frac{81^2}{3^3}=\frac{3^8}{3^3}=3^5=243\)

a)x¹²=x⁹.x³

b)(x⁴)³

a)\(175=10^2\)\(+10^1\)\(\times7\)\(+10^0\)\(\times5\)

b,\(1893=10^3+8\times10^2+9\times10^1+3\times10^0\)